Damping device of counterweight guide shoe for elevator
By designing multi-layer springs and hydraulic systems in the elevator counter-guiding boot device, combining pressure sensors and alarms, the problems of poor shock absorption and lack of alarm in the prior art are solved, and more effective shock absorption and safety are achieved monitor.
Patent Information
- Application Number
- CN202411221673.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2024-12-17
AI Technical Summary
The existing elevator heavy guide boot device has poor shock absorption effect under high speed and large load conditions, and lacks an effective alarm system, so it cannot promptly remind and repair.
A shock absorbing device including a mount, oil pipe, slide rod, limiting disk, large spring, friction plate, dome block, buffer plate, small spring and pressure overload sensor was designed, which was realized through hydraulic oil and multi-layer spring system. Buffer shock absorbing and equipped with pressure overload sensors and alarms for monitoring and alarm.
The initial shock absorption effect was achieved, and the alarm was promptly called when the elevator was too vibrating, ensuring the safety of the elevator and achieving the dual shock absorption effect.
Smart Images
Figure CN119142962A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of counterweight guide shoe shock absorption, in particular to a shock absorption device for a counterweight guide shoe for an elevator. Background Art
[0002] The counterweight guide shoe is a key component in the elevator system. Its main function is to connect the counterweight and guide rails of the elevator so that the counterweight can move up and down on the guide rails. Since there may be an unbalanced load during the operation of the elevator, that is, the load is unevenly distributed on the elevator car and the counterweight, the design of the counterweight guide shoe needs to take into account the working conditions of high speed and large unbalanced load. In the prior art, Chinese patent document CN212559058U discloses an elevator counterweight device with an anti-seismic structure, including a column, a support plate is provided at the bottom of the column, a crossbeam is provided at the top of the column, a plurality of counterweights are provided on the support plate and located on the inner side of the column, both ends of the damping plate are connected to connecting rods, the connecting rod passes through a damping fluid receiving chamber, a damping plate is provided in the damping fluid receiving chamber and located on the connecting rod, a damping hole is provided on the damping plate, the outer wall of the column is connected to a guide shoe, and the guide shoe is slidably connected to the counterweight guide rail. This patent can form a certain buffering effect on an out-of-control mounting frame and can reduce the generation of vibrations, but during the use of the device, when the elevator does not run smoothly enough and generates vibrations, the buffering effect is poor, and there is a lack of an alarm system. Summary of the invention
[0003] The object of the present invention is to provide a shock absorbing device for a counterweight guide shoe for an elevator to solve the problems raised in the above-mentioned background technology. To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a shock absorbing device for a counterweight guide shoe for an elevator, comprising: a shock absorbing device body, a mounting seat is arranged on one side of the shock absorbing device body, an oil pipe is arranged on one side of the mounting seat, a sliding rod is arranged inside the oil pipe, one end of the sliding rod is fixedly connected to a limit plate, and one side of the limit plate is fixedly connected to a large spring. A friction plate is arranged on the other side of the limit plate, a dome block is arranged on one side of the friction plate, a buffer plate is arranged on one side of the dome block, a small spring is arranged on one side of the buffer plate, and a middle spring is arranged on one side of the small spring. Preferably, mounting holes are provided at both ends of the mounting seat, the mounting holes are arranged in a linear array, one end of the oil pipe is fixedly sleeved in the limiting sleeve, the outer ring surface of the limiting sleeve is fixedly connected to the fixing block, and one side of the fixing block is fixedly connected to the mounting seat. Preferably, a sealing sleeve is fixedly connected to the other end of the oil pipe, a sliding rod sliding sleeve is arranged in the oil pipe, one end of the sliding rod is fixedly connected to the sealing ring, an oil leakage hole is opened on the surface of the sealing ring, the other end of the sliding rod is fixedly connected to the limit plate, one side of the limit plate is fixedly connected to the connecting column, the other side of the limit plate is fixedly connected to one end of the large spring, and the other end of the large spring is fixedly connected to the inner wall of the limit sleeve. Preferably, buffers are provided on both sides of the fixed block, one end of the buffer is fixedly connected to the mounting seat, and the other end of the buffer is fixedly connected to the pressure overload sensor. An alarm is installed on one side of the pressure overload sensor, and the alarm is fixedly sleeved in the fixed block, and the alarm is electrically connected to the pressure overload sensor. Preferably, a fixed slot plate is provided on one side of the alarm, one side of the fixed slot plate is fixedly connected to the friction plate, the other side of the fixed slot plate is fixedly connected to the connecting column, and one end of the dome block is fixedly connected to the fixed slot plate. Preferably, a connecting ear is symmetrically fixedly connected to the surface of one side of the buffer plate, one side of the connecting ear is fixedly connected to the connecting pressure plate by a fixing pin, the other side of the connecting ear is fixedly connected to the buffer plate, one side of the connecting pressure plate is fixedly connected to the support block by a small spring, one side of the support block is fixedly connected to the fixed block, two support blocks are provided and are symmetrically arranged about the center plane of the fixed block, and a limiting rod is fixedly connected between the two support blocks. Preferably, a sliding sleeve on the limit rod is provided with a deformable soft block, a sliding block is provided on one side of the deformable soft block, one end of the sliding block is slidingly sleeved on the limit rod, the other end of the sliding block is rotatably connected to one end of the connecting rod through a pin shaft, the other end of the connecting rod is rotatably connected to the connecting block through a pin shaft, one side of the connecting block is fixedly connected to the buffer plate, and both ends of the middle spring are fixedly connected to the sliding block. Compared with the prior art, the present invention has the following beneficial effects: 1. First, fix the mounting base to the outside of the elevator car by fasteners such as bolts. When the elevator car vibrates, the external slide rail transmits the reaction force to the friction plate, and the friction plate drives the fixed groove plate to move. Under the connection of the connecting column, the fixed groove plate drives the limit plate to move, and the limit plate drives the large spring to expand and contract to buffer the pressure. At the same time, the limit plate drives the slide bar to slide in the oil pipe, and the slide bar drives the sealing ring to move. Under the resistance of the hydraulic oil, the slide bar will not be pushed into the oil pipe quickly, thereby slowing down the deformation speed of the large spring. As the slide bar gradually penetrates into the oil pipe, the hydraulic oil flows from one side of the sealing ring to the other side of the sealing ring through the small oil leakage hole opened on the sealing ring. When the large spring rebounds due to the elastic force, it will push the limit plate to move in the opposite direction, so that the limit plate drives the slide bar to slide in the opposite direction. Due to the small aperture of the oil leakage hole, the slide bar is prevented from being reset quickly, thereby slowing down the reset of the large spring, and then achieving preliminary shock absorption. 2. When the vibration amplitude of the elevator is too large, one side of the fixed groove plate will be compressed to contact the pressure overload sensor. When the pressure overload sensor detects that the pressure exceeds the preset value, it will sound an alarm through the alarm electrically connected to it, so that the elevator can be repaired in time when the vibration is large, ensuring the safety of the elevator. 3. After the initial buffering and shock absorption by the large spring, if the vibration amplitude of the elevator increases, the compression of the large spring will increase, so that the friction plate drives the fixed slot plate to move continuously, and the fixed slot plate drives the dome block to move in the direction close to the buffer plate. At this time, the dome block will press the buffer plate to move. The buffer plate first compresses the small spring through the connecting pressure plate to buffer the pressure. At the same time, the buffer plate is connected and transmitted by the pin, the connecting block, the connecting rod, and the sliding block, so as to realize the relative movement of the two sliding blocks. When the two sliding blocks move towards each other, the sliding block will squeeze the middle spring, so as to further buffer the pressure through the compression of the middle spring. At the same time, the initial state of the deformed soft block is compressed by the sliding block. When the sliding blocks move towards each other, the deformed soft block is released, so that when the middle spring rebounds in the opposite direction due to the elastic force, the two sliding blocks will move back to each other. Under the resistance of the deformed soft block, the sliding block slowly moves in the opposite direction, so that the middle spring will not rebound in the opposite direction immediately, thereby slowing down the resetting of the small spring, reducing the vibration of the elevator, and achieving the effect of double shock absorption. BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a bottom view schematic diagram of the overall structure of the present invention; Figure 3 It is a schematic top view of the overall structure of the present invention; Figure 4 It is a side view schematic diagram of the overall structure of the present invention; Figure 5 It is a schematic diagram of the internal structure of the present invention; Figure 6 It is a schematic side view of the internal structure of the present invention. In the figure: 1. shock absorbing device body; 2. mounting seat; 3. oil pipe; 4. sliding rod; 5. limit plate; 6. large spring; 7. friction plate; 8. dome block; 9. buffer plate; 10. small spring; 11. medium spring; 12. mounting hole; 13. limit sleeve; 14. fixing block; 15. sealing sleeve; 16. sealing ring; 17. oil leakage hole; 18. connecting column; 19. buffer; 20. pressure overload sensor; 21. alarm; 22. fixing groove plate; 23. connecting ear; 24. connecting pressure plate; 25. fixing pin; 26. supporting block; 27. limit rod; 28. deformation soft block; 29. sliding block; 30. pin shaft; 31. connecting rod; 32. connecting block. DETAILED DESCRIPTION In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. See also Figures 1 to 6The present invention provides a technical solution: a shock absorbing device for a counterweight guide shoe for an elevator, comprising: a shock absorbing device body 1, a mounting seat 2 is arranged on one side of the shock absorbing device body 1, an oil pipe 3 is arranged on one side of the mounting seat 2, a sliding rod 4 is sleeved in the oil pipe 3, one end of the sliding rod 4 is fixedly connected to a limiting plate 5, one side of the limiting plate 5 is fixedly connected to a large spring 6, the mounting seat 2 is arranged to facilitate fixed installation with the elevator car, the sliding rod 4 is slidably sleeved in the oil pipe 3, the oil pipe 3 is filled with hydraulic oil, the large spring 6 is squeezed by the limiting plate 5, and thus buffered by the large spring 6, and mounting holes 12 are opened at both ends of the mounting seat 2, and the mounting holes 12 are arranged in a linear array The oil pipe 3 is fixedly sleeved at one end in the limiting sleeve 13, the outer ring surface of the limiting sleeve 13 is fixedly connected to the fixing block 14, one side of the fixing block 14 is fixedly connected to the mounting seat 2, and the mounting seat 2 is fixedly connected to the elevator car through the mounting hole 12 opened on the side wall of the mounting seat 2 through bolts and other fasteners, the fixing block 14 fixes and limits the limiting sleeve 13, the limiting sleeve 13 limits the oil pipe 3, the limiting sleeve 13 limits the sliding of the slide bar 4, the fixing block 14 is fixedly installed on one side of the mounting seat 2, the other end of the oil pipe 3 is fixedly connected with a sealing sleeve 15, the slide bar 4 sliding sleeve is set in the oil pipe 3, and one end of the slide bar 4 is fixedly connected to the sealing ring 16, An oil leakage hole 17 is provided on the surface of the sealing ring 16, the other end of the sliding rod 4 is fixedly connected to the limiting plate 5, one side of the limiting plate 5 is fixedly connected to the connecting column 18, the other side of the limiting plate 5 is fixedly connected to one end of the large spring 6, the other end of the large spring 6 is fixedly connected to the inner wall of the limiting sleeve 13, the sealing sleeve 15 is fixedly installed at the other end of the oil pipe 3, the sealing sleeve 15 can reduce the leakage of hydraulic oil, and the sealing ring 16 installed at one end of the sliding rod 4 is provided with an oil leakage hole 17, so that when the sealing ring 16 moves, the hydraulic oil leaks out from the oil leakage hole 17, and the large spring 6 is fixedly connected between the limiting sleeve 13 and the limiting plate 5, so that the limiting plate 5 is close to the large spring 6 When squeezing is performed, buffering and shock absorption are performed. Buffers 19 are arranged on both sides of the fixed block 14. One end of the buffer 19 is fixedly connected to the mounting seat 2, and the other end of the buffer 19 is fixedly connected to the pressure overload sensor 20. An alarm 21 is installed on one side of the pressure overload sensor 20. The alarm 21 is fixedly sleeved in the fixed block 14. The alarm 21 is electrically connected to the pressure overload sensor 20. The buffer 19 is fixedly installed on both sides of the mounting seat 2. The pressure overload sensor 20 fixedly installed at one end of the buffer 19 can cooperate with the alarm 21 to alarm when the vibration amplitude of the elevator is too large. The fixed block 14 limits and fixes the alarm 21. First, the mounting base 2 is fixed to the outside of the elevator car by fasteners such as bolts. When the elevator car vibrates, the external slide rail transmits the reaction force to the friction plate 7, and the friction plate 7 drives the fixed groove plate 22 to move. Under the connection of the connecting column 18, the fixed groove plate 22 drives the limit plate 5 to move, and the limit plate 5 drives the large spring 6 to expand and contract to buffer the pressure. At the same time, the limit plate 5 drives the slide rod 4 to slide in the oil pipe 3, and the slide rod 4 drives the sealing ring 16 to move. Under the resistance of the hydraulic oil, the slide rod 4 will not be pushed into the oil pipe 3 too quickly, thereby slowing down the deformation speed of the large spring 6. As the slide rod 4 gradually penetrates into the oil pipe 3, the hydraulic oil flows out from the small oil leakage hole 17 opened on the sealing ring 16. The oil flows from one side of the sealing ring 16 to the other side of the sealing ring 16. When the large spring 6 rebounds due to the elastic force, it will push the limit plate 5 to move in the opposite direction, so that the limit plate 5 drives the slide bar 4 to slide in the opposite direction. Since the aperture of the oil leakage hole 17 is small, the slide bar 4 is prevented from resetting quickly, thereby slowing down the resetting of the large spring 6, and then achieving preliminary shock absorption. In addition, when the vibration amplitude of the elevator is too large, one side of the fixed groove plate 22 will be compressed to contact with the pressure overload sensor 20. When the pressure overload sensor 20 detects that the pressure exceeds the preset value, it will sound an alarm through the alarm 21 electrically connected to it, so that the elevator can be repaired in time when the vibration is large, ensuring the safety of the elevator. A friction plate 7 is arranged on the other side of the limit plate 5, a dome block 8 is installed on one side of the friction plate 7, a buffer plate 9 is installed on one side of the dome block 8, a small spring 10 is arranged on one side of the buffer plate 9, and a middle spring 11 is arranged on one side of the small spring 10. The friction plate 7 arranged on the other side of the limit plate 5 contacts the external slide rail, and the dome part of the dome block 8 is made of rubber material. A fixed slot plate 22 is arranged on one side of the alarm 21, and one side of the fixed slot plate 22 is fixedly connected to the friction plate 7, and the other side of the fixed slot plate 22 is fixedly connected to the connecting column 18. One end of the dome block 8 is fixedly connected to the fixed slot plate 22. When the friction plate 7 drives the fixed slot plate 22 to move, the fixed slot plate 22 will drive the dome block 8 to continue to move, so that the dome block 8 squeezes the buffer plate 9 to move. A connecting ear 23 is symmetrically fixedly connected to the surface of one side of the buffer plate 7, one side of the connecting ear 23 is fixedly connected to the connecting pressure plate 24 by a fixing pin 25, and the other side of the connecting ear 23 is fixedly connected to the buffer plate 9, one side of the connecting pressure plate 24 is fixedly connected to the support block 26 by a small spring 10, and one side of the support block 26 is fixedly connected to the fixed block 14. Two support blocks 26 are provided and are symmetrically arranged about the central plane of the fixed block 14, and a limiting rod 27 is fixedly connected between the two support blocks 26. The connecting ear 23, the support block 26, and the connecting block 32 are all symmetrically arranged about the central plane of the buffer plate 9. The connecting pressure plate 24 is fixedly connected to the support block 26 by a small spring 10, and the connecting pressure plate 24 and the connecting ear 23 are fixedly connected by a fixing pin 25. The limiting rod A deformation soft block 28 is provided on the sliding sleeve 27, and a sliding block 29 is provided on one side of the deformation soft block 28. One end of the sliding block 29 is slidingly sleeved on the limit rod 27, and the other end of the sliding block 29 is rotatably connected to one end of the connecting rod 31 through a pin shaft 30, and the other end of the connecting rod 31 is rotatably connected to a connecting block 32 through a pin shaft 30. One side of the connecting block 32 is fixedly connected to the buffer plate 9, and both ends of the middle spring 11 are fixedly connected to the sliding block 29. The limit rod 27 is fixedly connected between the two support blocks 26. The limit rod 27 slides and limits the sliding block 29 and the deformation soft block 28. One end of the connecting rod 31 is rotatably connected to the sliding block 29 through a pin shaft 30, and the other end of the connecting rod 31 is rotatably connected to the connecting block 32 through a pin shaft 30, and the connecting block 32 is fixedly installed on the buffer plate 9. After the initial buffering and shock absorption is performed by the large spring 6, if the vibration amplitude of the elevator increases, the compression amount of the large spring 6 will increase, so that the friction plate 9 drives the fixed slot plate 22 to continue to move, and the fixed slot plate 22 will drive the dome block 8 to move in the direction close to the buffer plate 9. At this time, the dome block 8 will press the buffer plate 9 to move. The buffer plate 9 first drives the connecting pressure plate 24 to move through the fixed connection between the connecting ear 23, the fixed pin 25, and the connecting pressure plate 24. The connecting pressure plate 24 will then compress the small spring 10 to buffer the pressure. At the same time, the buffer plate 9 is connected and transmitted through the pin shaft 30, the connecting block 32, the connecting rod 31, and the sliding block 29, thereby pushing the connecting rod 31 to rotate between the connecting block 32 and the sliding block 29, so that the connecting rod 3 1 drives the sliding block 29 at one end thereof to move, thereby realizing the opposite movement of the two sliding blocks 29. When the two sliding blocks 29 move toward each other, the sliding block 29 will squeeze the middle spring 11, thereby further buffering the pressure through the compression of the middle spring 11. At the same time, the deformed soft block 28 is compressed by the sliding block 29 in the initial state. When the sliding blocks 29 move toward each other, the deformed soft block 28 is released. Therefore, when the middle spring 11 rebounds in the opposite direction due to the elastic force, the two sliding blocks 29 will move in the opposite direction. Under the resistance of the deformed soft block 28, the sliding block 29 slowly moves in the opposite direction, so that the middle spring 11 will not rebound in the opposite direction immediately, thereby slowing down the resetting of the small spring 10, reducing the vibration of the elevator, and achieving the effect of double shock absorption. Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A shock absorbing device for a counterweight guide shoe for an elevator, comprising a shock absorbing device body (1), characterized in that: A mounting seat (2) is provided on one side of the shock absorbing device body (1), an oil pipe (3) is provided on one side of the mounting seat (2), a sliding rod (4) is sleeved inside the oil pipe (3), one end of the sliding rod (4) is fixedly connected to a limit plate (5), and one side of the limit plate (5) is fixedly connected to a large spring (6); A friction plate (7) is arranged on the other side of the limit plate (5), a dome block (8) is installed on one side of the friction plate (7), a buffer plate (9) is installed on one side of the dome block (8), a small spring (10) is arranged on one side of the buffer plate (9), and a middle spring (11) is arranged on one side of the small spring (10).
2. The shock absorbing device for a counterweight guide shoe for an elevator according to claim 1, characterized in that: The mounting seat (2) has mounting holes (12) at both ends, and the mounting holes (12) are arranged in a linear array. One end of the oil pipe (3) is fixedly sleeved in a limiting sleeve (13). The outer ring surface of the limiting sleeve (13) is fixedly connected to a fixing block (14), and one side of the fixing block (14) is fixedly connected to the mounting seat (2).
3. The shock absorbing device for a counterweight guide shoe for an elevator according to claim 2, characterized in that: The other end of the oil pipe (3) is fixedly connected with a sealing sleeve (15), the sliding rod (4) is slidingly sleeved in the oil pipe (3), one end of the sliding rod (4) is fixedly connected with a sealing ring (16), the surface of the sealing ring (16) is provided with an oil leakage hole (17), the other end of the sliding rod (4) is fixedly connected with a limit plate (5), one side of the limit plate (5) is fixedly connected with a connecting column (18), the other side of the limit plate (5) is fixedly connected with one end of a large spring (6), and the other end of the large spring (6) is fixedly connected with the inner wall of the limit sleeve (13).
4. The shock absorbing device for a counterweight guide shoe for an elevator according to claim 3, characterized in that: Buffers (19) are arranged on both sides of the fixed block (14); one end of the buffer (19) is fixedly connected to the mounting seat (2); the other end of the buffer (19) is fixedly connected to the pressure overload sensor (20); an alarm (21) is installed on one side of the pressure overload sensor (20); the alarm (21) is fixedly sleeved in the fixed block (14); and the alarm (21) and the pressure overload sensor (20) are electrically connected.
5. The shock absorbing device for a counterweight guide shoe for an elevator according to claim 4, characterized in that: A fixed groove plate (22) is provided on one side of the alarm (21), one side of the fixed groove plate (22) is fixedly connected to the friction plate (7), the other side of the fixed groove plate (22) is fixedly connected to the connecting column (18), and one end of the dome block (8) is fixedly connected to the fixed groove plate (22).
6. The shock absorbing device for a counterweight guide shoe for an elevator according to claim 5, characterized in that: A connecting ear (23) is symmetrically fixedly connected to the surface of one side of the buffer plate (7); one side of the connecting ear (23) is fixedly connected to the connecting pressure plate (24) via a fixing pin (25); the other side of the connecting ear (23) is fixedly connected to the buffer plate (9); one side of the connecting pressure plate (24) is fixedly connected to a support block (26) via a small spring (10); one side of the support block (26) is fixedly connected to the fixing block (14); two support blocks (26) are provided and are symmetrically arranged about the central plane of the fixing block (14); a limiting rod (27) is fixedly connected between the two support blocks (26).
7. A shock absorbing device for a counterweight guide shoe for an elevator according to claim 6, characterized in that: A deformation soft block (28) is slidably sleeved on the limit rod (27), a sliding block (29) is provided on one side of the deformation soft block (28), one end of the sliding block (29) is slidably sleeved on the limit rod (27), the other end of the sliding block (29) is rotatably connected to one end of a connecting rod (31) through a pin shaft (30), the other end of the connecting rod (31) is rotatably connected to a connecting block (32) through a pin shaft (30), one side of the connecting block (32) is fixedly connected to the buffer plate (9), and both ends of the middle spring (11) are fixedly connected to the sliding block (29).